Silver Standard has the largest published in-ground silver resource of any publicly-traded silver company, with a pipeline of projects in Argentina, Peru, Mexico, Canada, Chile, the United States and Australia. We are making the transition to production with aggressive development on our core properties and the construction of our Pirquitas mine in northern Argentina, where commissioning is scheduled to commence in the fourth quarter of 2008.
Pirquitas will be among the largest open pit primary silver mines in the world, with average annual silver production of 10.9 million ounces, and with significant contributions from tin and zinc.
Other key projects we are advancing include the high-grade, gold-silver San Luis joint venture project in the Ancash Department of Peru, and our Pitarrilla silver project in Durango State, Mexico.
Silver Standard’s shares are listed on the Toronto Stock Exchange under the symbol SSO and on the Nasdaq Global Market under the symbol SSRI.
Current Operations
Principal Projects 1. Pirquitas: Project Summary
Under construction, commissioning scheduled for fourth quarter 2008 Average annual production: 10.9 million ounces of silver; > 2,500 tonnes of tin; > 6,500 tonnes of zinc
14.5-year mine life based on updated reserves
100%-owned, fully permitted
Capital expenditures: US$220 million
Accessible by two all-weather roads
Natural gas pipeline located approximately 36km south of the project
Proven & probable silver reserves: 195.1 million ounces
2. San Luis: The San Luis Project in central Peru is a high-grade gold-silver project located approximately 25 kilometers (16 miles) northwest of Barrick Gold Corporation’s Pierina gold mine, and can be accessed by two all-weather roads. We currently hold a 55% interest in the project through our joint venture with Esperanza Silver Corporation and have elected to increase our interest to 70% by funding costs required to complete a feasibility study for the project. Thereafter, we will have the right to increase our interest in the joint venture to 80% by funding costs to place the project in production.
Project Scope and Plans Exploration in 2008 will be directed to excavating underground levels on the Ayelen Vein in order to test the continuity of the mineralization and provide information for a feasibility study on the economics of developing a mine. The feasibility study will be undertaken in the second half of the year. Other vein targets will be mapped and sampled in detail, and it is expected that several of these will warrant testing by diamond drilling. A large geophysical program will be completed over the area left untested on the BP Zone. This geophysical program along with mapping and prospecting will provide the additional basis for a follow-up drill program testing for porphyry style mineralization on the BP Zone.
3. Pitarrilla: The Pitarrilla project is located on the eastern flank of the Sierra Madre mountain range in the central part of Durango State, Mexico. The major city of Torreon lies approximately 150 kilometers (93 miles) east of the project. Road access is good, with paved highways extending to within 20 kilometers (12 miles) of the center of the property. Silver Standard, through a subsidiary, holds a 100% interest in the mineral rights to the approximately 128,500-hectare Pitarrilla claim block. The company also holds significant surface rights in the area.
Project Scope and Plans The 2008 exploration program at Pitarrilla calls for continuation of an aggressive drilling program to complete the step-out drilling on Breccia Ridge and locate new zones of mineralization. At present there are two diamond drills working on the property. A pre-feasibility study has been initiated to estimate the project economics of developing the Breccia Ridge Sulphide Zone, which will form the foundation of a feasibility study. The underground ramp will be extended to access the mineralization for metallurgical sampling and definition drilling. Metallurgical studies will continue with the objective of optimizing the ore processing flow sheet.
4. Diablillos Diablillos is located 160 kilometers (99 miles) southwest of Salta on the altiplano of northern Argentina. The property is road accessible and is 275 kilometers (171 miles) south of Pirquitas. Discovered in the 1970s, the property was primarily explored from 1988 to 2001. Total expenditures by previous operators in excess of US$17 million resulted in the discovery of seven mineralized zones with the Oculto Zone, the largest, containing the reported resource. Exploration drilling completed by prior operators and Silver Standard totals 70,000 meters in over 360 rotary, reverse circulation and diamond drill holes.
During 2007 and early 2008, the company constructed a 40-person camp on site and completed over 11,000 meters of diamond drilling which infilled gaps in the historical drilling and confirmed the validity of previous reverse circulation drilling campaigns. Significant results from this drilling include hole DDH- 07-30, which intersected 20.3 ounces of silver and 0.02 ounces of gold per ton over 408 feet (696.1 grams of silver and 0.852 grams of gold per tonne over 124.5 meters), and DDH-07-32, which intersected 14.46 ounces of silver and 0.02 ounces of gold per ton over 443 feet (495.9 grams of silver and 0.737 grams of gold per tonne over 135.0 meters). An updated resource estimate will be prepared along with an update of the Barrick pre-feasibility study, which indicated that Diablillos could be developed as an open pit mine producing approximately 7.0 million ounces of silver and 70,000 ounces of gold per annum.
5. Snowfield Snowfield is located 65 kilometers (40 miles) north-northeast of Stewart, British Columbia, along the eastern margin of the Coast Mountain Range. Access is by helicopter, and the Eskay Creek Mine access road lies approximately 25 kilometers to the northwest. The project, together with our adjacent Sulphurets project, totals 4,467 hectares.
Project Scope and Plans In 2008, a 20,000-meter drill program is planned to test for extensions of the Mitchell East gold/copper zone and expand the known mineralization of the Snowfield Zone.